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Finding the Fourth Proportional to 135,884.60, 187,514.49 and 75,459.11

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Solution

The fourth proportional to 135,884.60, 187,514.49 and 75,459.11 is: 104,130.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,884.60 : 187,514.49 = 75,459.11 : x
  2. Step 2: Convert to fraction form
    135,884.60/187,514.49 = 75,459.11/x
  3. Step 3: Cross multiply
    135,884.60x = 187,514.49 × 75,459.11
  4. Step 4: Simplify right side
    135,884.60x = 14,149,676,927.67
  5. Step 5: Solve for x
    x = 14,149,676,927.67/135,884.60
  6. Step 6: Final answer
    x = 104,130.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.